320310016

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{883}}^1$

素因数の和:1021

約数の個数: 72

約数和(自身を含む): 695654960

約数和(自身を除く): 375344944

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 109, 128, 208, 218, 256, 416, 436, 832, 872, 883, 1417, 1664, 1744, 1766, 2834, 3328, 3488, 3532, 5668, 6976, 7064, 11336, 11479, 13952, 14128, 22672, 22958, 27904, 28256, 45344, 45916, 56512, 90688, 91832, 96247, 113024, 181376, 183664, 192494, 226048, 362752, 367328, 384988, 734656, 769976, 1251211, 1469312, 1539952, 2502422, 2938624, 3079904, 5004844, 6159808, 10009688, 12319616, 20019376, 24639232, 40038752, 80077504, 160155008, 320310016]

約数ペア:

[(1, 320310016), (2, 160155008), (4, 80077504), (8, 40038752), (13, 24639232), (16, 20019376), (26, 12319616), (32, 10009688), (52, 6159808), (64, 5004844), (104, 3079904), (109, 2938624), (128, 2502422), (208, 1539952), (218, 1469312), (256, 1251211), (416, 769976), (436, 734656), (832, 384988), (872, 367328), (883, 362752), (1417, 226048), (1664, 192494), (1744, 183664), (1766, 181376), (2834, 113024), (3328, 96247), (3488, 91832), (3532, 90688), (5668, 56512), (6976, 45916), (7064, 45344), (11336, 28256), (11479, 27904), (13952, 22958), (14128, 22672)]